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NSN 5306-01-622-7310

Close Tolerance Hex Head Bolt

About this product

Between 0.667 inches and 0.697 inches fastener length, fillister countersunk head style, 0.355 inches head diameter, head height: 0.014 inches .

Manufacturer part number NAS8704U5 for national stock number 5306016227310.

Datasheet

  • Product description

    Close Tolerance Bolt NSN 5306-01-622-7310.

  • MPN or Model

    NAS8704U5

  • Schedule B
    7318.15.2000 (Bolts and bolts and their nuts or washers exported in the same shipment)
  • NMF (National Motor Freight)
    093486 - Bolts, Nuts Or Screws, NOI (sub 3)
  • Thread Class
    3a
  • Thread Direction
    Right-hand
  • Thread Length
    0.370 inches
  • Fastener Length
    Between 0.667 inches and 0.697 inches
  • Head Style
    Fillister countersunk
  • Head Diameter
    0.355 inches
  • Head Height
    0.014 inches
  • Grip Diameter
    Between 0.249 inches and 0.250 inches
  • End Application
    Powerplant/en
  • Thread Diameter
    0.250 inches
  • Grip Length
    Between 0.302 inches and 0.322 inches
  • Thready Qty Per Inch (tpi)
    28
  • Countersink Angle
    Between 99.0 degrees and 101.0 degrees
  • Part Name Assigned By Controlling Agency
    Bolt reduced head
  • Material
    Iron alloy 660
  • Surface Treatment
    Passivate
  • Thread Series Designator
    Unjc
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Close Tolerance Bolt

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

Mechanic Bill explains Close Tolerance Hex Head Bolt

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NSN 5306016227310

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Manufacturer Part Numbers and Alternates
MPN manufacturer part number Registrant or Supplier
NAS8704U5 National Aerospace Standards
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